Complete the square x^2 + 12x + 9
Enter your answer in the form a(x + u)^2 + v, where a, u, and v are replaced by numbers.
+36916 Take 1/2 of the 'x' coeeficient = 6 then
(x+6)^2 will be the start now expand it to:
x^2 + 12 x + 36 <====== Note that this added 36 to the equation...so we need to subtract 36
(x+6)^2 - 36 + 9
(x+6)^2 - 27
